This is a bit too late! PSYOP campaigns have plagued Twitter & Facebook from the beginning. Twitter cracked down multiple times on fake accounts, but the operators change their modus operandi each time. It's basically whack-a-mole against the troll farm operators. Requiring phone numbers might slow them down, but then they just acquire a bunch of SIMs and continue registering. The only way to stop this is verifying people's passports and their account has to be held in their legal name. Just like a bank. It might be over the top, but it's the only way to drastically reduce the amount of propaganda, spam, astroturfing, dis-info, and artificially inflated metrics of Twitter & Facebook.